Thanks for the view into EventBridge from a practicality standpoint; you did a great job explaining exactly what use cases EventBridge will help service. One point I would like to contend is the assertion that this “is not microservices” because it definitely can be. In my mind, microservices is a separation-of-concerns strategy, whereas RPC and Message Broker are data-flow architectures. Regardless, it is a good point to call out since many microservice strategies do employ an RPC-ish architecture.

At Volta, we use SNS as our current message broker and I am very intrigued by EventBridge since it clearly solves a similar problem. The fundamental difference I have found so far is around latency, with delivery occurring in around 500ms for EventBridge and generally less than 30ms for SNS. Have you found any other important differences in your exploration thus far?